BMW 2006 X5 4.8is SAV Manual Do Proprietário

145

Tire identification marks

Knowledge of the labeling on the side
of the tire makes it easier to identify and
choose the right tires.

Tire size

Speed code letter:

Q = up to 105 mph/160 km/h
T = up to 118 mph/190 km/h
H = up to 131 mph/210 km/h
V = up to 150 mph/240 km/h
W = up to 167 mph/270 km/h

Tire Identification Number

Tires with DOT codes meet the guide-
lines of the U.S. Department of Trans-
portation.

e.g.

Nominal width
in mm

Cross-sectional ratio
in

Belted construction
radial

Rim diameter in inches

Load index,
not with ZR tires

Speed code letter,
with ZR tires before the R

235/65 R

7 104 H

DOT code:

Tire age

The manufacturer of your BMW recom-
mends that all tires, i.e. including the
spare wheel, be replaced regardless of
the actual wear after 6 years at the lat-
est.

The tire's date of manufacture is indi-
cated on the sidewall:
DOT... 2605 indicates that the tire was
manufactured in week 26 of 2005.

Uniform Tire Quality Grading

Quality grades can be found where
applicable on the tire sidewall between
tread shoulder and maximum section
width. For example:

e.g.

Manufacturer's code
for tire brand

Tire size and tire model

Tire age

DOT xxxx xxx 2605

DOT Quality Grades

Tread wear

Traction AA A B C

Temperature A B C

All passenger car tires must con-
form to Federal Safety Require-

ments in addition to these grades.

Tread wear

The tread wear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.

For example, a tire graded 150 would
wear one and one-half, 1

γ, times as

well on the government course as a tire
graded 100. The relative performance
of tires depends upon the actual condi-
tions of their use, however, and may
depart significantly from the norm due
to variations in driving habits, service
practices and differences in road char-
acteristics and climate.